Retinoid use with Thermal Device?

May 4, 2022
Asked By:ANDIEKV in Jackson Township, New Jersey

Can I use a thermal-based sonic infuser device to apply vitamin A products? I'm confused, because I know retinoids cannot be exposed to heat. Could this type of heat also destroy the efficacy of these products? *Another question: How can I tell if my tretinoin cream has gone bad? Mine appeared to be a bit watery. Thank you.